Chevrolet Sonic Repair Manual: Transmission Disassemble (Gen 2)
Special Tools
- 3-9506289 Universal Adapter
- R-0007758 Holding Fixture
- S-9407198 Differential Bearing Race Wrench
For equivalent regional tools, refer to Special Tools.
- Attach R-0007758 holding fixture (2) to the transmission.
- Attach R-0007758 holding fixture (2) with transmission to the 3-9506289 Universal Adapter (1).
- Remove the clutch release bearing (1).
- Remove the clutch fork shaft retaining bolt (2).
- Remove the clutch fork shaft (1).
- Remove the transmission control lever housing bolts (1).
- Remove the control lever housing (2) and gasket (3).
- Remove the transmission cover bolts (3).
- Remove the transmission cover (2) and gasket (1).
- Remove the back up lamp switch (1).
- Remove the transmission case bolts (3).
- Remove the transmission case (2) and gasket (1).
- Remove the case magnet (4), may stay with case.
- Remove the reverse gear shaft snap ring (6) if equipped.
- Remove the reverse idler gear washer (5), may stay on the reverse idler gear shaft.
- Mark the differential bearing adjuster and case (1) before removal.
- Remove the differential bearing adjuster lock bolt (1).
- Remove the differential bearing adjuster lock (2).
- Using S-9407198 differential bearing race wrench remove the front differential bearing adjuster (1).
- Remove the front differential bearing retainer O-ring seal (2).
- Remove the front differential carrier cover bolts (1).
- Remove the differential carrier cover (2) and gasket (3).
- Remove the front differential carrier (1).
Note:
The reverse gear shaft snap ring (6) MUST be installed even if not originally equipped to prevent shifting issues caused by incorrect assembly or parts not in position.
Transmission Disassemble (Gen 1)
Special Tools
3-9506289 Universal Adapter
R-0007758 Holding Fixture
S-9407198 Differential Bearing Race Wrench
For equivalent regional tools, refer to Special Tools.
Attach R-0 ...
Transmission General Description
The Hydra-matic 6T30/40/45/50 is a fully automatic, 6-speed, front-wheel drive,
electronic-controlled transmission. It consists primarily of a 4-element torque
converter, a compound planetary gear ...
Other materials:
Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat
or rolling terrain. Tips for driving in these conditions include:
Keep the vehicle serviced and in good shape.
Check all fluid levels and brakes, tires, cooling system, and transmission.
Shift to a lower gear whe ...
Additional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to
avoid future costly repairs. To maintain vehicle performance, additional maintenance
services may be required.
It is recommended that your dealer perform these services — their trained dealer
technicians know you ...
Drive Range - Fourth Gear (Gen 2)
As vehicle speed increases, the transmission control module (TCM) processes input
signals from the automatic transmission input and output speed sensors, the throttle
position sensor and other vehicle sensors to determine the precise moment to command
OFF the normally-low 35R pressure control ...
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